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Converters and audio input
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Converters and audio input


  • Subject: Converters and audio input
  • From: Ruotger Skupin <email@hidden>
  • Date: Mon, 21 Nov 2005 16:45:56 +0100

Hi,

I have a problem with AudioConverters. Maybe I just started with the wrong idea...

I have this setup:

audio input)-->(converter 44.1kHz stereo/8kHz mono)-->(ring buffer)--> (some processing)-->(converter 8kHz mono/44kHz stereo)-->(audio output

While the part on the right side of the ring buffer seems to work ok, the converter on the left side behaves a little strange. It is impossible to choose an ioOutputPacketDataSize for AudioConverterFillComplexBuffer() so that it doesn't pull too many or too little frames from my AudioConverterComplexInputDataProc().

Even worse, when the converter tries to pull more frames than I have and I tell it something like *ioNumberDataPackets = 0, it doesn't stop to call me but goes on for a dozen more times. After that the whole audio processing freezes.

regards
	Ruotger Skupin


Ruotger Skupin Mac OS X Software Engineering

ilink Kommunikationssysteme GmbH
Münzstr. 13; 10178 Berlin - Germany

email@hidden



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